Where must the grounding electrode conductor for a separately derived system be connected?

The grounding electrode conductor (GEC) for a separately derived system must be connected at the same location as the bonding jumper. This is crucial because it ensures that the grounding system is effectively integrated and that all relevant grounding components work together to maintain the safety and integrity of the electrical system.

In a separately derived system, independent ground and neutral systems may exist, so bonding at the same point ensures that the system is properly referenced to ground and minimizes the risk of ground potential rise during an electrical fault. This connection also helps prevent potential differences between conductive surfaces, which could pose a shock hazard.

By connecting the GEC at this location, compliance with the National Electrical Code (NEC) requirements is maintained, which helps in protecting both equipment and individuals from electric shock hazards while ensuring system reliability.